Crank puller facilitating dismounting of chainwheel

Details Crank puller facilitating dismounting of chainwheel Crank puller facilitating dismounting of chainwheel

2006-07-26

2010-12-07

Wilson, Lee D (Department: 3727)

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

C029S256000, C029S278000, C029S270000

Reexamination Certificate

active

07845057

ABSTRACT:
A crank puller includes a nut portion having a front end for screwing into a threaded hole on a crank, and an internally threaded bore; a bolt portion screwed through the threaded bore and having a front conical-bottomed hole; a head portion fitted in the conical-bottomed hole and having a front end with an annular groove for receiving an elastic element therein; and a cap portion assembled around the front end of the head portion for pressing against a crank axle, and being replaceable corresponding to a diametrical size of the crank axle.

REFERENCES:
patent: 3862483 (1975-01-01), Kloster
patent: 5090102 (1992-02-01), Lovell
patent: 5890271 (1999-04-01), Bromley et al.
patent: 6125519 (2000-10-01), Kaibach et al.
patent: 7496999 (2009-03-01), Robarge
patent: 7644481 (2010-01-01), Kang
patent: 7658368 (2010-02-01), Laun
patent: 2007/0067985 (2007-03-01), Hsiao

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